Authentication APIs
Boost and protect traditional username and password login for websites, SaaS products, and mobile apps. Everything made easy for users, developers, and businesses.
ENABLE VERIFICATION ANYTIME, ANYWHERE, AND ON ANY USER:
Boost and protect traditional username and password login for websites, SaaS products, and mobile apps. Everything made easy for users, developers, and businesses.
ENABLE VERIFICATION ANYTIME, ANYWHERE, AND ON ANY USER:
Just allow integration of our API or SDK into your app and let FONE API do the rest. Explore how we consistently deliver one of the highest verification rates in the industry.
Phone verification shouldn’t be complex. Just give us a number and we’ll take care of everything - generate the code, localize, use the fastest channel, fall back if and when needed.
Verify has fast delivery, intelligent failover and selects the optimal channel for reaching your user. What’s more, FONE API complies with changing carrier and country regulations so messages don't get filtered out.
Why should failure cost you anything? With FONE API you only pay per successful verification. What’s more, it works on a flat fee basis, regardless of where users are based. And you can monitor costs in real time.
Deliver verification codes over the fastest routes through FONE API in real-time. It automatically retries sending a code and failover to voice if needed.
FONE API ensures your messages are compliant and removes the complexity of monitoring global carrier and country regulations.
Just send a phone number to FONE API and it detects the number type then selects the right channel: either SMS or voice.
FONE API blocks and detects virtual, premium, and Toll-Free numbers that are used for spam and fraud. PIN codes are generated using the industry standard RFC6238 algorithm – and expire within minutes.
Even languages and voice accents are adapted to regional preferences to maximize verification success.
Customize or personalize message templates, pre-record voice calls, and configure the time between retries to deliver the user experience you desire.
Integrate phone numbers with unique mobile device IDs to detect SIM swaps. Automatically logout users after a given time and enforce re-authentication.
Spare design and development resources with a customizable UI that is pre-integrated with verification workflows and has login management across devices.
SDK uses push notifications so subscribers can verify users multiple times with no additional cost.
Use alternative passwords with single use codes sent over SMS, voice or push. Phone number identities let you connect your users from their contacts.
Authenticate unique phone numbers to prevent bots, spammers, and card testers more effectively than captchas or email verification.
Allow an additional second factor to authenticate users without hardware costs or complex integration. Ensure global reach from day one.
Reset passwords in a secure manner by confirming users’ ownership of their phone number. Resolve speedily and eliminate help desk costs.
Apply out-of-band authentication on high-value transactions or when risk score crosses a threshold and eliminate manual reviews.
Balance user acquisition with compliance by phone verifying lower tier customers instead of onerous id verification for all users.
